Machine



(No Model.) 5.Sheets -Sheet I.

A. PUGH. HOISTING MACHINE.

No. 320,886. Patented June 23, 1885.

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(No Model.) 5 SheetsSheet 2.

' A. PUGH.

HOISTING MACHINE. No. 320,886. Patented June 23, I885.

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(No Model.) 5 Sheets-Sheet 3.

A. PUGH. HOISTING MACHINE.

No. 320,886. Patented June 23, 1885.

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(No Model.) 5 Sheets-Sheet 4.

A. PUGH. HOISTING MACHINE.

No. 320,886. Patented June 23, 1885.

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(No Model.) 5 Sheets-Sheet 5.

A. PUGH. HOISTING MACHINE. No. 320,886. Patented June 23, 1885.

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UNITE STATES ARCHELAUS PUGH, OF ST. PAUL, MINNESOTA.

HOlSTlNG-MACHINE.

SPECIFICATION forming part of Letters Patent No. 320,886, dated June 23,1885.

Application filed May 21, 1885. (Ne model.)

To all whom, it may concern.-

Be it known that I, AROHELAUS PUGH, a citizen of the United States, anda resident of St. Paul, in the county of Ramsey and State of Minnesota,have invented certain new and useful Improvements in HoistingMaehines,of which the following is a specification.

This invention is intended to be used in elevating coal and similarmaterial from the holds of vessels, &c.,and transferring it to smallcars, and from thence to the dumping grounds, platforms, or pockets, andit consists in the construction, combination, and arrangement of parts,as hereinafter shown and described, and then sought to be specificallydefined bythe claims.

The invention may also be used under some circumstances in other placesthan on docks, and for other purposes than in unloading vessels.

In the drawings, Figure 1 is a semi-sectional side elevation, and Fig. 2is a rear elevation, of one of the machines. Fig. 3 is a plan view insection on the line a: w of Fig. 1. Fig. 4 is a plan view in section onthe line 3 y of Fig. 1. Figs. Band 6 are enlarged details of theboom-supporting hangers. Fig. 7 is a plan view of the trestle-work andtrack system on which the dumping-ears travel. Fig. 8 is an enlargeddetail of the bucket and car operating drums. Figs. 9, 10, and 11 areenlarged views of one of the cars.

The machine consists, generally, in a large frame-work mounted upontrucks adapted to travel upon a track or tracks upon a trestlework orother suitable support along the edge of a dock at which the vessel tobe unloaded is moored, and supporting an adjustable boom by which thehoisting-bucket is adapted to be elevated, the frame-work also carryingin its coal, 850., may beconveyed to any part of the dock or other placeof storage or into railroad-cars or other vehicles.

As before stated,this apparatus may be used in handling other materialthan coal, and in connection with other vehicles than vessels; butgenerally itwill be used as shown and described.

A repre sents the frame or trestle-work erected along the dock at whichthe vessel to-be unloaded is moored, and will consist of piling andstringers constructed in the ordinary manner and having tracks a a aalong its top parallel with the water frontage.

The frame-work supporting the boom is formed, as shown, by open tituber-work B, having truck-wheels b beneath it, resting up on the tracksa a a, by which means the frame-work B may be moved along the dockfrontage to any desired extent. The framework B is tapered inward at itsupper part, so as to render it less top-heavy, and is provided with anouthanging frame, B, from which the outer end of the boom is suspendedby guys, &c.

The boom consists of a horizontal section, 0, suspended by hanger-rods Bfrom a cross timber,,B on the front of the frame B, about halfway upfrom its bottom, and with its rear portion passing through and pivotedin an upright frame, 0, adapted to swing around on centers (1. Theremainder of the boom consists of a swinging downward-l.y-inelinedsection, 0 hinged to the outer end of the horizontal section 0, andconnected by the stayrods or guys 6 to the upper part of the out hanger13 By this means the inclined section 0 of the boom may be hoisted upagainst 'the outhanger, to be out of the way when not in use. Thenlowered down, this hinged section 0" will project outward and downwardover the vessel to be unloaded. In the draw ings this adjustable section0* of the boom is shown broken out to denote that the inclined sectionis longer than is shown in the drawings. The inclined sect-ion of coursemay be of any length desired.

The hanger-rods B, by which the forward end of the horizontal section 0of the boom is held, are merely bent rods with hooked lower ends, andadapted to enclasp the cross-timber B and embrace the boom by theirhooked ends. Thus the spaces between thebooms and the upper sides of thebooms are left entirely unobstructed, so that a truck or carrier, D, maytravel up the inclined section through the hangers B and along thehorizontal section 0 without obstruction.

The boom is formed of timbers set a few inches apart and held apart attheir ends, leaving the space between them for their whole lengthsentirely unobstructed, so that the hoisting-cable 5 passing down betweenthem, may run the entire length of the boom with out obstruction.

The truck D, before mentioned, consists of a frame mounted on flangedwheels which run upon the upper surfaces of the two boom-sections 0 C astracks, and is provided with a central grooved wheel or sheave, h,overwhich the hoisting-cable 9 runs. One end of this cable 9 is fastened tothe lower side of the truck D, and runs downward around a sheave, E,upward over the sheave h, and thence over a third sheave, h on a truck,D", mounted upon the horizontal section Oof the boom, and thence arounda sheave, h, at the rear end of the boom, and thence down to thehoistingmachinery. to be hereinafter described.

The truck D has a third bearing wheel or wheels adapted to travel alongthe under side of the horizontal section 0 of the boom to prevent thetruck from cramping upon the boomsection. The outer end of the truck isprovided with a projection or stop, 1', against which a correspondingprojection, 12*, on the truck D is adapted to strike when the latterruns up the inclined section 0 of the boom, as hereinafter shown.

Attached to the sides of the horizontal section 0 of the boom are smalltracks or guides m, in which small wheels or rollers m are adapted torun. Attached to each of these rollers, and hanging downward therefromon each side of the boom. are triangular frames m, connected acrosstheir lower ends by a crossbar or stop, m

The truck D has a rope or cable, n, attached to it and running forwardover a sheave, M, on the side of the horizontal section 0 of the boom,and thence back over a sheave, W, and down to aweight, a. By this meansthe truck D will be held normally forward toward the upper end of theinclined section 0 of the boom, as shown in Fig. 1.

There are many forms of hoisting-buckets used in connection with thisclass of machine; but I have shown in the drawings an approved form ofbucket consisting, as shown, of the body G, having a bale, G hinged tothe body a short distance below its center, so that the bucket will dumpitself, and adapted to be attached to the hook E of the frame-supportingsheave E, and held upright and prevented from dumping by a trippingmechanism c011- sisting of a lever G hinged to the bale G of the bucketand hooked over the edge of the bucket at p. The upper part of thistripping-lever is providedwith an extended or forked end, which isadapted to strike upon the crossbar m, connecting the lower ends of theframe m when the bucket is elevated, as hereinafter shown.

Built into the frame-work B is a hopper or receptacle, B having asliding door, B, by which its contents may be discharged into a smallcar, K, running upon trackst on the floor B of the frame-work B. Thetrestlework A is extended back ward from the frame B, and is providedwith small tracks t at right angles to the main tracks a a a theselatter tracks being on a line level with the tracks t on which the carsK run. They will be extended to any distance and any number may be used,and they may be arranged with switches, if desired, to enable the smallcars to be run in any desired direction. A portion of one of thesesystems of extension-tracks is shown in Fig. 7, in which is alsoexhibited a portion of the main trestle-work A and the rail a and asection of the frame B and floor B of one of the movablehoisting-machines. to show that the railst 011 which the car K runs whenon the floor B mav be set to 'oin a a J J the rails t of theextended-track system, so that the cars may run from the rails t uponthe rails 15. The ends of the rails t next to the rails it will bejointed and movable from side to side, like switches on ordinaryrailroads, so that the rails t may be adjusted to correspond to therails where the location of the hatchways of the vessels will not permitthe hoisting-machine to be set so as to bring the rails t t oppositeeach other.

Another advantage of the switches in the rail t is that it enables me toadjust the rails t to the rails t, which is much easier than it is tomove thewhole hoisting-machine to adapt the rails t to the rails t.

Running along the system of extended tracks t, at right angles to themand parallel with the rails a a a is another pair of rails, 15, with aturn table, T, at each junction of the rails t and t so that the cars Kmay be transferred from one track t to the other, to enable the coal,850., to be carried to any part of the sys tem.

The bucket G will usually be made to hold about one ton of coal, andeach of the cars K will be made to hold two or more tons, while thehopper B may be formed large enough to hold any amount.

I claim a great advantage by this manner of arranging the boom, with oneportion horizontal and the other portion inclined, as the bucket canthereby be dumped into the hopper B at its lowest possible point, sothat the coal will not fall farther than is absolutely necessary toempty the bucket. With an elevating-boom running upward and backward atan angle and without the joint in it, it is necessary, in order to getthe bucket over the hopper far enough to dump it, to elevate it for somedistance up the inclined boom after it passes over the edge of thehopper, thus causing the-coal to fall a greater distance than isnecessary to merely empty the bucket, whereas with my arrangement thedistance between lls the top of the hopper and the horizontal part 0 ofthe boom need only be sufficient to perlnit the passage of the bucket Gand its bale G and hoisting-sheave E over the edge of the hopper Thebucket then travels along the horizontal portion of the boom, and ofcourse is not elevated any higher, so that when dumped the coal fallsonly a Very little farther than the depth of the hopper, and will not bebroken or injured.

The coal is generally graded as to size at the mines or at theshipping-points, and it is desirable to keep it in the same condition tosave the expense of regrading, 850.; hence the advantage of an apparatusthat will not break the larger pieces into smaller pieces, and thuschange the grade.

When the truck D runs from the inclined section 0 of the boom upon thehorizontal section 0, its projection 13" strikes the projections t" onthe truck D", and from that point the truck D carries the truck D" withit along the horizontal section 0 of the boom, and at the same timedraws the cable nback ward and elevatcs the weight n, the fork p on thetrip-lever G at the same time striking the crossbar m of the trip anddumping the bucket. Then the hoisting-cableg will be released,and theweight n* will draw the truck D outward again and push the truck Doutward over the point where the two parts 0 O are joined, and down uponthe inclined section of the boom. From this point the weight of thebucket will be sufficient to draw the truck D down the inclined sectionof the boom and lower the bucket G automatically again into the hold ofthe vessel, the function of the truck D being merely to push the truck Doff from the horizontal section of the boom upon the inclined section Cagain to insure the return of the bucket to the vessel.

The projections or bumpers t" i will be provided with springs to receivethe impact of the flow when they come together and thus preventconcussion from breaking any of the )arts. 1 The trip-frame m at will beprovided with a cable, m and weight m", similar to the cable and weightn 92*, attached to the truck D", by which it may be held forward in theposition shown in Fig. 1.

The weight m will be sufficientl y heavy to hold the trip m m withconsiderable force, so that under ordinary circumstances it will offerresistance enough to cause the lever G to be thrown out of contact withthe bucket G when the trip-lever strikes the bar m but should thetrip-lever become caught or cramped by any means the trip will be drawnalong the tracks m, and thus avoid the breakage of the trip-lever, bale,or other parts of the apparatus. The trip is thus a flexible safetyattachment to the apparatus.

The hinging of thejoint in the boom 0 G is not an essential feature tothe perfect operation of the apparatus, as far as the mere hoisting ofthe bucket and dumping it into the hopper is concerned 5 but the hingein the boom, as before stated, enables the part 0 to be hoisted up outof the way when not in use, which is a very important advantage, as theboom is not then in danger of being struck by the rigging of passingvessels, neither will the boom strike the rigging of vessels when thehoisting-machines are being moved along the trestle-work A.

The outhanger is formed by two inclined timbers, B bolted to the sidesof the framework B, and extending up above the framework and connectedacross the top by a crosstie or timber, B The guy-ropes e orhoisting-ropes of the adjustable boom-section C are connected totheouter end of this crosstimber B and converge inward toward and areattached to the boom by straps or bales w. The suspension-hangers B areadapted to be moved along the cross timber B, as before described, sothat the outer end of the boom may be swung around'on the centers (1 toadapt it to the hatchways of the vessel to be unloaded. By drawing uponone set of the guy-ropes or hoisting-cables e and loosening up the otherset the boom may be drawn around from side to side, this movement be inglimited only by the width between the timbers B, but will be sufficientfor all ordinary purposes.

The lateral adjustment of the boom is avery important feature of myinvention, as I am enabled thereby to adapt the boom to the hatchways ofthe vessels without moving the frame-work B, which is frequently a Veryimportant advantage. This lateral adjustment also enables me to use twoof the hoisting- .machines in one hatchway, as the booms of the twoframe-works B may be set toward each other without causing the frames tointerfere.

Another advantage gained by the lateral adjustment of the boom is thatthe hoistingframe may be moved along far enough to set its rails topposite one of the pairs of rails if other than the pair whichnaturally come opposite to it when the boom is at right angles to it, sothat the coal may be delivered upon any one of three or four of the setsof rails it without moving the vessel.

I do not wish to be confined to the precise construction of the boom andits connections, as shown in the drawings, as I am aware thatmodifications under certain circumstances might be advisable ornecessary.

On the floor B of the frame-work B is mounted the hoisting-drums andother ma chinery for operating the buckets G and the small cars K.

M represents the main driving-shaft mounted on suitable bearings andpillow-blocks M on a frame-work, M, upon the floor B This shaft M isadapted to be revolved continuously either by an engine upon the floor Bor power applied in any other manner. Upon this shaft M is mounted afriction-pinion, M while upon either side of it upon countershafts M illare two friction-wheels, M M Each of these counter-shafts is suppliedwith a drum, M M, the drum M adapted to receive a cable, 11, one end ofwhich is attached to the car K, while the other end, after being woundabout the drum M a number of turns, runs through the car K or throughthe open space between its axles and its hopper-shaped bottom, andthence to the outer ends of the small tracks t, upon which the car is torun, (the tracks 1 being shown in Fig. 7,) thence around a snatch blockor sheave, t", on the outer part of the trestle-work, and thence back toand around a brake-'rod, K mounted upon the outer end of the car K. Theextension of the cable 1) and the snatch block or sheave o are shown inthe drawings in Fig. 7.

By revolving the brake-rod K the cable 2; may be wound around it to takeup the tension or to tighten the cable, and also to take up any slackcaused by the stretching of the cable. By this means the distance whichthe car travels can be regulated. The cable 11, as before stated, willbe wrapped around the drum M a number of turns, so that when the drum isrevolved in one direction it will draw the car K toward it or beneaththe hopper B while if it be revolved in the opposite direction it willdraw the car in the opposite direction. Thus the cars K may be runoutward to any desired point, and then back again to their positionsbeneath the hopper B by merely reversing the motion of the drum M.

An automatic trip mechanism will be arranged upon each of the cars K torelease the catches which hold the doors of the car K, and arranged tobe set at any point on the track t over which the cars run, so that theload may be dumped at any desired point. This automatic trippingmechanism is shown attached to all the cars in all the views, but moreclearly in Figs. 9, 10, and 11.

On one end of each of the cars K is pivoted a small lever, c, with oneend extending out beyond the sides of the car and supported'by one endof a smaller lever or latch, 0 pivoted at c on the side of the car.

A chain, 0, runs from the lever 0 around a sheave, c, on the end of thecar, and thence inward beneath the car, where it is divided into twoparts, a c", and runs in opposite directions around sheaves c c", andeach part attached to one of the swinging doors K" K of the car. By thismeans it will be seen that when the lever 0 is held upward by the latchc" the doors K K will be held closed by the chains '0 c c. The latch cis pivoted centrally, as before stated, to the car K, and is provided onthe end opposite to the end which extends beneath the lever c with arod, 0 which extends downward and is provided with a head orenlargement, 0, adapted to be held beneath a catch, 0", on the side ofthe car. This catch is open on its outer side, so that the rod 0" may bepulled out of contact with it to release the rod 0 and latch 0.

By this simple arrangement the head or enlargement 0 holds the rod 0"and latch a downward, and the latter in turn holds the doors K K closedby the chains 0" 0 0 as before described, so that so long as the rod cis held in the catch a the doors K K will be held closed. The rod 0 willextend downward below the enlargement a, so that it will strike and bethrown out of the catch a" by an inclined trip-plate, c, adapted to beattached to the frame supporting the rails t wherever it is desired todump the loads of the cars.

These trip-plates a will be movable, so that they can be set at anydesired point on the frame-work of the rails t.

On the shaft M is another drum, M", to which the free end of. thehoisting-cable g is attached, so that the revolving of this drum willelevate the bucket G. The ends of the shafts M M next to thedriving-wheels M M arejournaled in eccentric collars 1W1 M, which inturn are j ournaled in boxes or bearings M M fast to the frame M so thatthe revolving of the eccentric collars will throw the shafts M M nearerto or farther away from the friction-pinion M to throw thefriction-wheel M M in and out of contact with the constantlyre volvingfriction pinion. By this means both of the drums M- M or either one ofthem separately, may be thrown into contact with. the friction-pinion toelevate the bucket G or to move the car K backward and forward upon itstracks.

Attached to the eccentric collar l\ is a lever or arm, N, to the upperend of which a substantially-horizontal lever, N is pivoted by one end,while the other end of the horizontal lever is pivoted to one arm of abell-erank, N. The other arm of this bell-crank is connected with asubstantially upright lever, N, having a rack, N upon its upper endadapted tobe moved upward and downward by a pinion, N", journaled on theframe B. The shaft of this pinion N will be provided with a crank, bywhich it may be operated. In practice this pinion will be arranged atsome distance upon the frame-work B, convenient to the hand of theoperator, who will stand upon a platform about on a level with the topof the hopper. By this means the operator is in a position where he canobserve the operation of the buckets, and by the use of the pinion N andrack N can have perfect control over the hoisting machinery, as theturning of the pinion will raise and lower the lever N" upward anddownward, and thus, through the bell-crank N lever N, and arm N,attached to the eccentric collar M, move the friction-wheel M againstthe friction'pinion M or away from it, and thus operate the bucket orallow it to remain stationary or run backward, as required.

The other eccentric collar, M, is also pro vided with an arm, P, similarto the arm N, to which levers P I? are connected, convenient to the handof the operator, whose dutyit is to run the cars K inward and outward. I

Suspended by a yoke-frame, P, beneath the nearest point of contact ofthe friction-wheel M and friction-pinion M, is another frictionpinion oridler, P

The yoke-frame P is connected at its upper end with the short arm of alever,P, convenient to the hand of the operator. It will thus be seenthat if the lever be drawn upward the large friction-wheel M will bethrown in contact with the friction-pinion M", and thus cause the drum 39 to wind up the cable 1; and draw the ear K inward toward the hopperBflready to befilled. Then the moment the car is in position beneath thehopper the levers I P will be released and the motions of the carstopped. Then when the car is loaded and ready to be moved out to bedumped the operator pushes down upon the other lever, P, and elevatesthe idle pinion P up into contact with both the pinions M and wheel Mand connects the large frictionwheel M with the friction-pinion Mthrough the idler Pithereby reversing the motion of the drum M, andcausing it to draw in on that part of the cable '1) running from it tothe snatch-block '0", before mentioned, and thus draw the car outward tothe point where it is to be dumped. These levers l5 and P may beprovided with ropes running over pulleys, 850., so that the pullingofthe ropes will oper ate the levers; but their operation would be thesame.

q is a rope attached by one end to the truck D, and running upward andbackward over a sheave, 51 ,011 the frame B,and thence down to a weight,q". This rope q will be provided with a movable stop, q, adapted tostrike the sheave Q2 when the truck D pulls the rope q downward, andlimits the movement of the truck upon the inclined section C of theboom. WVhen the truck D is drawn upward, the weight (f runs down andtakes up the slack of the rope, and then when the truck runs down againthe rope will be drawn through the sheave q until the stop q* strikesit, which will stop the farther progress of the truck down the boom, andby adjusting the stop q upon the rope the distance which the trucktravels down the boom may be regulated to adapt the action of the bucketG to the location of the hatchway of the vessel, or to the beam of thevessel, 850.

Having thus described my invention, what I claim as new, is

1. In a hoisting apparatus, aframe-work, B, a boom. composed of asubstantially horizontal section, 0, and a downwardly and outwardlyinclined section, 0", as a continuation thereof, a traveler D, adaptedto run upon said boom as a track, the hoisting bucket suspended fromsaid traveler, and means for elevating said bucket and moving saidtraveler, substantially as and for the purpose set forth.

2. In a hoisting apparatus, a frame-work, B, having a receptacle, B ,inits lower part, a boom composed of a substantially horizontal section,0, and a downwardly and outwardly inclined section, 0 a traveler, Dadapted to be moved outward and held toward the front of said horizontalsection by acable and weight or other similar suitable device, atraveler, D, adapted to run upon said inclined section 0 and having thehoistingbucket G suspended therefrom, substantially as and for thepurpose set forth.

3. The combination of the frame-work B, having the receptacle or hopperB in its low er part. a boom composed of the substantially horizontalsections 0' and the inclined sec tions 0 pivoted supporting-frame O ,inwhich the rear end of said horizontal section is supported, suspensionrods B outhangers B guys 6, traveler D provided with the cable andweight, traveler D, from which the hoisting-bucket G is suspended,hoistingeable g, flexible trip at m, and means whereby saidhoisting-bucket is elevated, substantially as set forth.

4. The combination of the framework B, having the receptacle or hopper Bin its lower part, a boom composed of substantially horizontal section 0and inclined section 0 pivoted supporting-frame C, in which the rear ofsaid horizontal section is supported, outhangers B guys (2, traveler D",provided with cable and weight, traveler D, from which thehoisting-bucket G is suspended, hoistingcable g, flexible trip m nt",main driving-shaft M, carrying the friction pinion M", countershaft M,carrying friction-wheel M and drum M to which the end of saidhoisting-cable is attached, and means whereby said frictionwhecl may bethrown in contact with and disconnected from said frictionpinion,substantially as and for the purpose set forth.

5. In a hoisting apparatus, aframe-work, B, a boom composed of asubstantially horizen'tal section, 0, and a downwardly and outwardlyinclined section, (3' as a continuation thereof, and adapted to beadjusted laterally within said frame-work, a traveler, D, adapted to runupon said boom as a track, the hoisting-bucket suspended from saidtraveler, and means for elevating said bucket and moving said traveler,substantially as and for the purpose set forth.

6. In a hoisting apparatus, a supportingtrestle or frame-work, A, havinga series of rails, a a a a frame-work, B, supported upon said rails bytrucks 1), and provided with receiver B adjustable boom 0 G, and

bucket G, means for elevating said bucket and dumping its contents intosaid receiver, tracks 25 in said frame B, upon which a car, K, isadapted to run, a system of extended rails, t, corresponding to saidrails t and at right angles to said frame A, and rails a a a a pair ofrails, t, at right angles to said rail t, and connected therewith byturn-tables T, substantially as and for the purpose set forth;

7. The combination, with a frame, B, having receiver B and supporting aswinging boom, 0 0 upon which a bucket, G, is adapted to be elevated todump its contents into said receiver, and provided with rails t, on

which a car, K, is adapted to run, and adapttrip-block c, drum M, cable'0, snatch-block ed to be moved upon rails a a a of a system if,tightening-rod K", and means, substantially I 5' of rails, t,corresponding to said rails t, the as described, whereby the motion ofsaid ends of said rails it being adjust-able at their drum may bereversed, as and for the purjunction with said rails t, substantially asand pose set forth. for the purpose set forth. In testimony whereof Ihave hereunto set 8. The combination of a frame, B, having my hand inthe presence of two subscribing 2o receptacle B and rails 15, anextended system Witnesses. of rails, t, car K, adapted to run upon saidrails, and provided with hinged sides, K K", AROHELAUS PUGH' automatictipping mechanism consisting of I Witnesses: the levers c, chains 0 c a,latch 0 rod 0 JOHN B. SANBORN, having enlargement a, catch 0",adjustable O. N. WOODWARD.

